Uncouth (adjective)

Lacking manners, refinement, or culture; coarse or rude.

Origin:

From old english ungecuth, ungecuð.

Examples:

1. He had an uncouth way of speaking.
2. She was known for her uncouth behavior at parties.
3. The uncouth man was not welcomed at the event.
4. His uncouth attitude was not tolerated by his colleagues.
5. The uncouth language used in the movie was not appropriate for children.